Current transformer clamp for Shelly Pro 3 EM. Rated primary current: 120 A. Rated secondary current: 40 mA. Accuracy: 1%. Can measure up to 120 A for each phase and the neutral conductor. Phase sequence error detection (optional). Memory that can be retrieved over a period of up to 60 days in 1-minute intervals. Two-way energy consumption monitoring. Monitor your home, office, or factory to avoid unnecessary expenses or voltage drops that can damage your household and office appliances. Shelly Pro 3 EM can calculate two-way consumption: produced and consumed energy for each of the three phases. The device can also be configured to measure three separate circuits of a single-phase electrical system. Displays the quality of your power grid in terms of active power, reactive power, voltage, and power factor.